#49: first; Hitler wasn't a Christian, he hated it and Jesus Christ as weak and destructive. Second, religion is different from truth and faith. If one religion happens to be true, then faith in it is faith in true ethics, regardless of how people BEHAVE while claiming that religion.

Christianity in particular teaches that we're all sinful and fallen and in need of a savior, so sinners being part of it is one of its central tenets.